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, PATENTED 06T TEMPORARY'BINDBR. APPLI-GATION FILED JAN 30, 1902 n P. PEUGEOHE G. A. `smoBMAK'ER QNQMODEL.

N, n. r.. mc mams PETER: no.. wnrmmfu.. wAsnmam UNITED STATES Patented October 20, 1903.

PATENT OFFICE.v

PIERRE PEUGEOT AND GEORGE A. sHOEMAKER, OE CHICAGO, ILLINOIS, p

ASSIGNORS TO BAKER-VAWTER COMPANY,

A CORPORATION.

OF CHICAGO, ILLINOIS,

TEMPORARY BINDER.

SPECIFICATION forming part of Letters Patent N0. 741,710, dated October 20, 1903. Application iiled January 30, 190,2. Serial llo.v 91.867. (No model.) i

To all whom, t may concern:

Be it known that we, PIERRE PEUGEOT and GEORGE A. SHOEMAKER, both residents of the city of Chicago,lcounty of Cook, in the State of Illinois, haveinvented a certain new and useful Improvement in Temporary Binders, of which the following is a specification.

Our invention relates torthat class of binders wherein one cover is removable for the purpose of inserting and removing leaves, and more particularly tofthelocking mechanism of that class of devices designed to be manufactured in small and compact sizes, such as price-books, pocket-ledgers, and the like.

Our invention will fully' appear in the following description, reference being had to the.

accompanying drawings.

In the drawings, Figure l represents'a general view of the completed binder, showing it iilled with leaves and the lock engaged. Fig. 2 presents a cross-sectional view of Fig. l, taken perpendicularly across narrow width of the binder and through the binding parts, showing in detail the locking mechanism. Fig. 3 presents a particular and detailed view of the locking mechanism engaged. Fig. 4'

presents another detailed view of the locking mechanism, but released or disengaged. Fig.

. 5 presents a cross-sectional viewof Fig. l,

taken horizontally through the binding parts, and presents the locking mechanism in horizontal cross-section.

More? particularly described, A represents the binder-body, consisting of Acovers d a;

leaves a', and binding-bars a2 a2. y

B represents the locking-post, comprised of two parts B andBz. Part B consists of an oval-shaped tube b, one end of which is rigidly secured to one of the binding-bars c62, preferably the lower one, and the other end projecting inward to engage with the other locking part B', projecting inward from the opposite bar. In the center of and parallel with the tube b lies a threaded post b', also rigidly secured at one end to the same binding-bar with which the tube b has engagement. This post h extends as to its free and threaded end inwardly through the center of the tube b and to or approximately to the same distance as the free end of the tube b. In corresponding position with the part B and telescoping with said part B there extends from the other and opposite bindingbar the locking part B2'. B2 consists of an internally-threaded screw which passes through an aperture in the said opposite binding-bar and registers and connects with the locking part B.Y The construction of this screw B is shown in Fig. 3. The screw-head b5 is notched, b4, for operation as in Vordinary screws.- The screw part B2 is arranged to pass through an aperture in one of the binding parts d2 a2, the head b3 holding the screw within` the aperture and the halves b2 b2 extending beyond the aperture and inwardly toward the part B'.

The Operation of the lock is described as follows: The binding-bars a2 n.2, the one presenting inwardly the tubular part B' and the other presenting inwardly the screw part B2, with the halves b2 b2 sprung apart and the two parts B and B2 in corresponding position, are brought together and the .halves b2 b2 tted into the tube b in register with its largest diameter and encircling the threaded post b',-

but lying free from contact therewith, as in Fig. 4. The screw part B2 is then given a turn of ninety degrees and the halves b2 b2 made to register with the shortest. diameter of thetube b, as shown iuFig. 3 and in crosssection in Fig. 5. This operation draws the halves h2 b2 together and engages thethreads thereof with those of the post b', thereby securing a firm connection of the parts B and B2 and locking the binder. Another quarterturn of the screw registers the halves h2 b2 with the longest diameter h and allows them to again spring apart, thereby releasing the lock.

We purpose to use one or more of these lock-posts,as occasion may demand,and claim the right to secure the posts B' and B2 permanently to the binding-bars or not,as may seem lmost practicable.

As a variation of our invention the thread- IOO ed post ZJ may he done away with and the tube b be internally threaded and the halves b2 b2 externally threaded. Further, any suitable form of connection other than threads may be used as seems desirable.

Any form of binding-posts may be used as desired. The form which we prefer and as illustrated, CC, is the teleseopingr post`described in United States Letters Patent No. 649,649, issued to Christian H. Stoelting, assigner to William A. Vawter, under date of May 15, 1900.

Ve claim as our invention- 1. A binder-lock consisting of parallel binding-bars together with an in ternally-threaded screw, the shaft of which is split, projecting,r inwardly through an aperture in one of the binding -bars, the head of which serew is larger than said aperture, and a corresponding oVaLshaped tube secured to the opposite binding-bar and projecting inwardly and a threaded post lying in the center of said tube and secured to the same binding-bar and projecting inwardly and parallel with said tube, substantially as described and for the purposes herein set forth.

2. A binder-lock consisting of an internallythreaded screw split the length 0f the shaft, the split Vparts of which normally lie apart and a corresponding tube of uneven diameter iitted with a threaded post lying in its center and parallel with its length, the same having telescoping engagement with the said screw, substantially as described and for the purposes herein set forth.

PIERRE PEUGEOT. GEORGE A. SHOEMAKER. Vitnesses:

ARLA R. BLACK, O. B. BAKKER, Jr. 

